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#!/usr/bin/python
# Copyright (c) 2008-2016 Alexander Belchenko
# All rights reserved.
#
# Redistribution and use in source and binary forms,
# with or without modification, are permitted provided
# that the following conditions are met:
#
# * Redistributions of source code must retain
# the above copyright notice, this list of conditions
# and the following disclaimer.
# * Redistributions in binary form must reproduce
# the above copyright notice, this list of conditions
# and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
# * Neither the name of the author nor the names
# of its contributors may be used to endorse
# or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
# BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
# OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""Merge content of several hex files into one file."""
VERSION = '2.1'
USAGE = '''hexmerge: merge content of hex files.
Usage:
python hexmerge.py [options] FILES...
Options:
-h, --help this help message.
-v, --version version info.
-o, --output=FILENAME output file name (emit output to stdout
if option is not specified)
-r, --range=START:END specify address range for output
(ascii hex value). Both values are inclusive.
Range can be in form 'START:' or ':END'.
--no-start-addr Don't write start addr to output file.
--overlap=METHOD What to do when data in files overlapped.
Supported variants:
* error -- stop and show error message (default)
* ignore -- keep data from first file that
contains data at overlapped address
* replace -- use data from last file that
contains data at overlapped address
Arguments:
FILES list of hex files for merging
(use '-' to read content from stdin)
You can specify address range for each file in the form:
filename:START:END
See description of range option above.
You can omit START or END, so supported variants are:
filename:START: read filename and use data starting from START addr
filename::END read filename and use data till END addr
Use entire file content:
filename
or
filename::
'''
import sys
def main(args=None):
import getopt
output = None
start = None
end = None
write_start_addr = True
overlap = 'error'
if args is None:
args = sys.argv[1:]
try:
opts, args = getopt.gnu_getopt(args, 'hvo:r:',
['help', 'version',
'output=', 'range=',
'no-start-addr', 'overlap=',
])
for o,a in opts:
if o in ('-h', '--help'):
print(USAGE)
return 0
elif o in ('-v', '--version'):
print(VERSION)
return 0
elif o in ('-o', '--output'):
output = a
elif o in ("-r", "--range"):
try:
l = a.split(":")
if l[0] != '':
start = int(l[0], 16)
if l[1] != '':
end = int(l[1], 16)
except (ValueError, IndexError):
raise getopt.GetoptError('Bad range value(s)')
elif o == '--no-start-addr':
write_start_addr = False
elif o == '--overlap':
if a in ('error', 'ignore', 'replace'):
overlap = a
else:
raise getopt.GetoptError('Bad overlap value')
if len(args) == 0:
raise getopt.GetoptError('You should specify file list')
except getopt.GetoptError:
e = sys.exc_info()[1] # current exception
sys.stderr.write(str(e)+"\n")
sys.stderr.write(USAGE+"\n")
return 1
import intelhex
# TODO: move actual merge code into intelhex package as helper function
# and write couple of tests for it.
res = intelhex.IntelHex()
def end_addr_inclusive(addr):
if addr is not None:
return addr + 1
return addr
for f in args:
try:
fname, fstart, fend = intelhex._get_file_and_addr_range(f)
except intelhex._BadFileNotation:
sys.stderr.write('Bad argument: "%s"\n' % f)
sys.stderr.write(USAGE+"\n")
return 1
if fname == '-':
fname = sys.stdin
ih = intelhex.IntelHex(fname)
if (fstart, fend) != (None, None):
ih = ih[fstart:end_addr_inclusive(fend)]
try:
res.merge(ih, overlap)
except intelhex.AddressOverlapError:
e = sys.exc_info()[1] # current exception
sys.stderr.write('Merging: '+fname+"\n")
sys.stderr.write(str(e)+"\n")
return 1
if (start, end) != (None, None):
res = res[start:end_addr_inclusive(end)]
if output is None:
output = sys.stdout
res.write_hex_file(output, write_start_addr)
return 0
if __name__ == '__main__':
sys.exit(main())
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